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3 years ago

What is the north star called

2 answers:

Volgvan3 years ago

8 0

<span>Pole star. ... In practice, the term pole star usually refers to Polaris, which is the current northern pole star, also known as the North Star. The south celestial pole lacks a bright star like Polaris to mark its position.</span>

nataly862011 [7]3 years ago

7 0

If you followed this axis out into space from the northern hemisphere on Earth, it would point toward a particular star in the sky. We call that star the "North Star" since it sits in the direction that the spin axis from the northern hemisphere of Earth points. At present, the star known as Polaris is the North Star.

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What are some good sex positions?

Blababa [14]

Answer:

Doggy

Explanation: Its more exotic :)

8 0

3 years ago

Read 2 more answers

Question is above pls help<br>A)2<br>B)3<br>C)4<br>D)5

zvonat [6]

Answer:

5 will come in blank

4KMnO₄ ----------> 2K₂O + 4MnO + 5O₂

Explanation:

Reaction:

4KMnO₄ ----------> 2K₂O + 4MnO + ____O₂

this reaction is the dissociation reaction in which KMnO₄ is break down into its component.

KMnO₄ upon dissociation gives Potassium oxide, manganese oxide and liberate oxygen

Balance Chemical Equation:

A balanced chemical equation is that in which the the number of the reactant atoms equal to the number of the product atom.

For example if the oxygen at the reactant side is 4, the number of oxygen should be 4 on the product side.

So for this purpose we have to balnce the reaction and number of atoms on each side of the arrow

if we see the given Equation

Numbers of atom on reactant Side:

K = 4

Mn = 4

O = 16

Numbers of atom on reactant Side:

K = 4

Mn = 4

O = 6 instead of blank oxygen molecule

so from the above data we have 10 oxygen less.

If we put the 5 in the blank then we will have 10 oxygen and equation will be balanced

So the balanced Equation will be

4KMnO₄ ----------> 2K₂O + 4MnO + 5O₂

7 0

3 years ago

What type of electromagnetic is used in radar

Vika [28.1K]

Answer: Radio Waves

Explanation:

6 0

3 years ago

Read 2 more answers

H2SO4 + 2NaNO2 → 2HNO2 + Na2SO4

dem82 [27]

<h3>Answer:</h3>

23.459 g NaNO₂

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

Reading a Periodic Table
Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN] H₂SO₄ + 2NaNO₂ → 2HNO₂ + Na₂SO₄

[Given] 24.14714 g Na₂SO₄

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol Na₂SO₄ = 2 mol NaNO₂

Molar Mass of Na - 22.99 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of S - 32.07 g/mol

Molar Mass of Na₂SO₄ - 2(22.99) + 32.07 + 4(16.00) = 142.05 g/mol

Molar Mass of NaNO₂ - 22.99 + 14.01 + 2(16.00) = 69.00 g/mol

<u>Step 3: Stoichiometry</u>

Set up: $\displaystyle 24.14714 \ g \ Na_2SO_4(\frac{1 \ mol \ Na_2SO_4}{142.05 \ g \ Na_2SO_4})(\frac{2 \ mol \ NaNO_2}{1 \ mol \ Na_2SO_4})(\frac{69.00 \ g \ NaNO_2}{1 \ mol \ NaNO_2})$
Multiply/Divide: $\displaystyle 23.4587 \ g \ NaNO_2$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We need 5 sig figs (instructed).</em>

23.4587 g NaNO₂ ≈ 23.459 g NaNO₂

8 0

3 years ago

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If i were to visit mystery island in january would i have to bring an umbrella?

Nitella [24]

Yes, you would have to bring an umbrella because if the island is named mystery you never know when it'll rain.

3 0

3 years ago